Fixes the regression where the viewport is way too large after an optimal zoom...

Fixes the regression where the viewport is way too large after an optimal zoom operation (cf. #660).
6 jobs for zoom-viewport-fix in 240 minutes and 3 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Test
passed debian_stretch_x86_64_deb #17519
debian stretch x86_64

00:38:33

passed osx_10.11_x86_64_dmg #17521
osx v10.11 dmg

00:34:18

passed osx_10.8_x86_64_dmg #17522
osx v10.8 dmg

00:22:36

passed raspbian_stretch_armv7l_deb #17524
raspbian arm stretch

01:22:01

passed ubuntu_16.04_x86_64_deb #17520
ubuntu v16.04 x86_64

00:36:16

passed windows_i386_innosetup #17523
windows i386

01:48:11